| Patent Number |
Title Of Patent |
Date Issued |
| 7555037 |
Methods and apparatuses to provide synchronization symbol on demand for DSL systems |
June 30, 2009 |
| A method and apparatus for providing synchronization data on demand are described. The method includes sending one or more synchronization parameters from a receiver to a transmitter in a data communication system, and adjusting transmission of synchronization data from a transmitter |
| 7502336 |
Multi-carrier communication using adaptive tone-pruning |
March 10, 2009 |
| An apparatus, system, and method are described for multi-carrier communication using adaptive tone-pruning. The method may include transmitting a data-bearing signal over a plurality of tones on a communication loop within a plurality of communication loops and calculating a minimum |
| 7443916 |
Method and apparatus for communication in the presence of impulse noise |
October 28, 2008 |
| A method, system and apparatus for reliable multicarrier communication in the presence of periodic impulsive interference is disclosed. A power level of noise in a signal is determined. An impulse noise in the signal is detected. A gain factor associated with the impulse noise is det |
| 7433395 |
Reliable multicarrier communication in the presence of timing phase error |
October 7, 2008 |
| A method, system and apparatus for reliable multicarrier communication in the presence of timing phase error is disclosed. Phase noise due to a sampling-time phase mismatch between a transmitter device and a receiver device is measured in a signal. A Gaussian noise power level in the |
| 7421015 |
Bit-loading in multicarrier communication systems in the presence of an asymmetric, correlated g |
September 2, 2008 |
| In general, various methods and apparatus are described that use a multi-tone receiver. The multi-tone receiver detects data in a multiple tone signal. The receiver has a detector module to measure a noise power level present in the system and to detect for an asymmetric Gaussian noi |
| 7369607 |
Multicarrier communication using a time domain equalizing filter |
May 6, 2008 |
| Various methods and apparatus are described that use a filter. A receiver may be configured to receive multi-tone signals. The receiver has a Time Domain Equalizer filter employing an algorithm to shorten a length of an incoming impulse response to equal to or less than a guard period by |
| 7177419 |
Methods and apparatuses for detecting and reducing non-linear echo in a multi-carrier communicat |
February 13, 2007 |
| Apparatuses, systems, and methods for a multi-carrier communication system that detects and reduces an echo from a non-linear element present on the transmission medium. In an embodiment, a training period is established between a first transmitter-receiver device and a second transm |
